GreenPAK™ with Low Drop Out Regulators

To overcome these challenges, Dialog has developed the concept of “Flexible Power Islands”. Using FPIs, designers can divide their complex power system into some number of local power regions (or islands), each of which includes the power control, power sequencing and power regulation needed to support loads in the immediate vicinity. This technique results in higher performance and a more efficient solution that can be flexibly tailored to the requirements of each individual system.

在某些情况下，使用FPI可以非常有用，可以增强电源管理IC（PMIC）中包含的功能。在此用例中，FPI可以支持局部负载点调节，排序和电源监控。这可能导致更简单的布局，以及改善的能量和热效率。

For smaller and simpler systems (which have up to six power rails), the FPI concept can provide most or all of the power system functions needed. In this case, the FPI can serve as a “µPMIC”, but with the added benefit of greater levels of flexibility and customization, with no requirements for NRE.

使用SLG46580，对话框已经捕获了许多这些必要的电力系统功能（电源监控，测序，复位和电源开关），以2.0 x 3.0 mm 20销全封装的塑料包装。使用对话框的易于使用的GUI基于GUI的GPAK Designer™和GPAK开发硬件，设计人员可以快速轻松地实现其独特的设备配置，从而定制功能符合其独特的电源要求。

The SLG46580 has four LDOs, each with a maximum output current of 150mAs. Each of the LDOs has a programable output voltage level that can be set to one of thirty two different values from 0.9V to 4.35V, and also have programmable options for slew-rate selection and fault detection.

FPI概念广泛适用于一系列终端市场，如下所示。

• Handheld Devices
• Wearable Electronics
• 计算和存储
• 消费类电子产品
• Smart Home
• 网络和通信
• 医学＆工业

Benefits of GreenPAK with LDOs

High Integration

• Includes many components typically found in power systems
  • 功率控制
  • Power Sequencing
  • Power Monitoring
  • 权力调节

Small Size

• 2.0 x 3.0小董事会区域的STQFN包装

Tri-Mode 150 mA LDO Regulators:

• 模式0：150mA输出，静态电流在约60μA
• Mode 1: 100μA output with Quiescent Current at ~6 μA
• 旁路模式：像负载开关一样

GreenPak可配置宏观细胞的灵活性

• Analog Comparators
• 有限公司mbination Function Macro-cells
• 异步状态机（ASM）
• I²C.Slave Protocol Interface

Using Asynchronous State Machine for Power Sequencing

异步状态机（ASM）宏单元非常适合驾驶灵活的电源排序架构。基于图形用户界面（GUI）的开发工具允许用户快速定义操作状态，允许的状态之间的转换，并链接到驱动每个状态转换的信号。使用其他GreenPak宏单元允许用户容易地基于基于时间的状态转换（使用延迟宏小区）和逻辑功能（使用查找表）。下面所示的示例状态机是在演示项目中使用的，以驱动六个电源轨的电源排序信号，以及依次打开四个LDO的信号。

有限公司ntrolling LDOs with GreenPAK Resources

The LDOs included in these devices allow the user to control many aspects of the output dynamically during operation:

控制输出电压：每个LDO都可以支持两个输出电压，这是可用户可选择的。有一个来自连接矩阵的内部信号，可以在操作期间切换输出电压。

有限公司ntrolling Power Consumption:Each LDO regulator can operate in MODE0 (standard active mode supporting full 150 mA output), as well as MODE1 (low power mode with maximum 100μ output with reduced quiescent current consumption.

加载开关模式：Each LDO has a user-selectable option where regulator ceases to regulate and the power MOSFET is turned on as a power switch, passing the voltage applied to VIN directly to VOUT.

Changing LDO Behavior Via I²C:上面列出的所有控制功能也可以通过I²C命令更改。